What Triggers Tool Wear and Chipping in High-Precision Machining Centers?
Manifestations of tool damage (1) Micro-chipping of the cutting edge When the material structure, hardness, and allowance of the workpiece are uneven, a too large rake angle can lead to low cutting edge strength. Additionally, insufficient rigidity in the processing system can cause vibration, especially during intermittent cutting, resulting in poor grinding quality and making the cutting edge prone to micro-chipping, such as small chipping, notches, or peeling. When this occurs, the tool may lose some cutting ability but can still continue to work. However, continued cutting with a damaged cutting edge may lead to rapid expansion of the damaged area, causing even greater harm. (2) Chipping of the cutting edge or tooltip This type of damage usually occurs under more severe cutting conditions than those that cause micro-chipping of the cutting edge, or it can be a more advanced form of micro-chipping. The size and extent of the chipping are larger than micro-chipping, which causes...